Malicious PDF — malware analysis report

Static analysis result for SHA-256 2968da79b2dacc2d…

MALICIOUS

PDF

127.4 KB Created: 2021-06-30 02:18:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: de9c04d2ec29362006b013c3d74b2391 SHA-1: 44f4f6687325a3f3293791b73fe976a09f0e0fd3 SHA-256: 2968da79b2dacc2d23adc47afe9822e806d7f4454c12ebf0aeab4ac69c33928c
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious. It contains numerous links pointing to compromised websites and disposable hosting, suggesting a phishing or malware distribution scheme. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature. The file's structure and embedded links indicate an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ndmoyun.com/calisma2/files/uploads/wewomevegule.pdf
    • https://motelandratecuci.ro/userfiles/file/nopeguwejipexapelegono.pdf
    • http://progfin.pl/userfiles/file/65797069567.pdf
    • https://sportsht.com/userfiles/file/vuwededujotidalezobekot.pdf
    • http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a9ddd5f020e---sifawemamusujemu.pdf
    • http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/1607844ef45f6f---72691969482.pdf
    • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/kenovozugekogobivatud.pdf
    • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/70ee1b5cdeff4af92a64e160552c69da/baxedojetipilojal.pdf
    • https://kanalprofi.at/UserFiles/file/tupigedebujirizig.pdf
    • http://klhl.com/userfiles/file/terujamagofew.pdf
    • http://earthtalismanjewelry.com/clients/b/b2/b27d4d76c51cd35ccef873a204118430/File/34035559957.pdf
    • https://christembassybarking.org/wp-content/plugins/super-forms/uploads/php/files/3b8514524a978ccdb2e52e333379e319/xulesurojesobawirakaw.pdf
    • https://chp-travel.ir/data/file/popavunovikif.pdf
    • https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/177c445c5f498c47657101132293be95/rukufufizevabarewulewa.pdf
    • http://bendhorseride.com/userfiles/file/96668999942.pdf
    • https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/d7679658c34f9a539a14204ab451b10e/luwodapabi.pdf
    • http://etcad.net/np/upfile/file/masiw.pdf
    • https://yarpaket.ru/userfiles/file/satedepovanopudo.pdf
    • http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1607265053cf61---26891006135.pdf
    • http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/1607f7925cb266---28531622570.pdf
    • https://capitaleny.com/wp-content/plugins/super-forms/uploads/php/files/2bdcbbc99451e327e3bc6cc86bfcd6b7/gilijisafevuzor.pdf
    • https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/16095937ec00c6---10960213617.pdf
    • https://circolodelpistone.ch/userfiles/file/4082423986.pdf
    • http://petra-dario.info/upload/datoteke/wafatarekozuvokatisef.pdf
    • http://mfcwestenkwartier.nl/beta/userfiles/file/mapowuzowejut.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=the+secret+diary+of+laura+palmer+pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000183b6.bin
aefec44d4c129d08a459858eb657994cb1da38eb03313179f783f3fa9e5ab40d
pdf-font-stream PDF embedded font (sfnt) at offset 0x183B6 23964 bytes
font_01_sfnt_off0001bc5d.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x1BC5D 16792 bytes
font_02_sfnt_off0001d474.bin
b8960cfde34242ac605a3fd5e1b8d780142a62c85239cea13de88c833f7e1aae
pdf-font-stream PDF embedded font (sfnt) at offset 0x1D474 10956 bytes